ferrari 328 turbo?

Not from the factory.

 

Joe, GTB and GTS turbos had 2.0 liter engines and were manufactured from 1986 to 1989 primarily for the Italian market. It replaced the 208 turbo models.

Barry

 

You're right Joe, I wonder if this is factory, according to this plate, it is.
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It's not a 328 -- it's a "GTS turbo" (i.e., 328 coachwork with a 2.0L turbo engine as Barry indicated)

 

Steve, was that 2.0L turbo factory installed on the 328 body?

 

Yes, as Barry indicated, the "GTB/S turbo" was the natural replacement for the 208 turbo as the coachwork evolved from 308 to 328, and they still needed an under 2 liter model for some markets. The title page and beauty shot from the GTB turbo GTS turbo OM (note the small NACA duct in the rear quarter panel here and in the eBay photos):
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Thanks!

 

Note that those cars are not that rare, at least in Europe, as the production numbers are somewhat significant...there were:
- 308 "Turbos GTB - Berlinettas"
- 828 "Turbo GTS - Spider"
manufactured (I speak only of the 328 body with the 2,0 l engine, turbocharged, with intercooler)

 

Back in the 80s in Italia I only managed to spot 208 turbos, that's when I learned of this model.

 

Yep, at this moment there are 73 variants of the 208 for sale on autoscout Italy. That's more then the amount of all of the 308/328 variants put together...

 

looks pretty darn factory to me...

 

Here's a pic of the 208L Turbo
also found here: http://www.fugazi.co.uk/308/Misc/miscimages.htm scroll all the way down.
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Factory pics of the GTB turbo, with nice shots of the turbocharged engine:

http://www.topspeed.com/cars/ferrari/1986-1989-ferrari-gtb-turbo-ar79735/pictures.html

 

Interesting to see that they went back to the single V-belt for the WP and alt (although it looks like a larger cross-section belt).